<template>
    <div class="type-nav">
            <div class="container">
                <h2 class="all" @mouseenter="enterList" @mouseleave="leaveList">全部商品分类</h2>
                <nav class="nav">
                    <a href="###">服装城</a>
                    <a href="###">美妆馆</a>
                    <a href="###">尚品汇超市</a>
                    <a href="###">全球购</a>
                    <a href="###">闪购</a>
                    <a href="###">团购</a>
                    <a href="###">有趣</a>
                    <a href="###">秒杀</a>
                </nav>
                <div class="sort" v-show="show" @mouseenter="enterList" @mouseleave="leaveList">
                    <div class="all-sort-list2" @click="goSearch">
                        <div class="item bo" v-for="c1 in categoryList" :key = "c1.categoryId">
                            <h3 >
                                <a :data-categoryName="c1.categoryName" :data-category1Id="c1.categoryId">{{c1.categoryName}}</a>
                            </h3>
                            <div class="item-list clearfix">
                                <div class="subitem">
                                    <dl class="fore" v-for="c2 in c1.categoryChild" :key="c2.categoryId">
                                        <dt>
                                            <a :data-categoryName="c2.categoryName" :data-category2Id="c2.categoryId">{{c2.categoryName}}</a>
                                        </dt>
                                        <dd >
                                            <em v-for="c3 in c2.categoryChild" :key="c3.categoryId">
                                                <a :data-categoryName="c3.categoryName" :data-category3Id="c3.categoryId">{{c3.categoryName}}</a>
                                            </em>
                                        </dd>
                                    </dl>
                                </div>
                            </div>
                        </div>

                    </div>
                </div>
            </div>
        </div>
</template>

<script>
import {mapState} from 'vuex'
 export default{
     name: 'TypeNav',
     data() {
         return{
              show:true   
             }
     },
     mounted(){
         this.$store.dispatch('categoryList');
         //组件挂载完毕 show属性变为false
          if(this.$route.path!='/home'){
              this.show = false;
          }
     },
     computed:{
         ...mapState({
             categoryList: (state)=>{
                 return state.home.categoryList;
             }
         })
     },
     methods:{
         goSearch(e){
             let element = e.target;
             let {categoryname,category1id,category2id,category3id} = element.dataset;
             if(categoryname){
                 let location = {name: 'search'};
                 let query = {categoryName: categoryname}
                 if(category1id){
                     query.category1Id = category1id;
                 }
                 else if(category2id){
                     query.category2Id = category2id;
                 }
                 else if(category3id){
                     query.category3Id = category3id;
                 }
                 if(this.$route.params){
                     location.params = this.$route.params;
                 }
                 location.query = query;
                 this.$router.push(location);
             }
             
             
         },
         enterList(){
             this.show = true;
         },
         leaveList(){
             this.show = false;
         }
     }
 }
</script>

<style scoped lang="less">
   .type-nav {
        border-bottom: 2px solid #e1251b;

        .container {
            width: 1200px;
            margin: 0 auto;
            display: flex;
            position: relative;

            .all {
                width: 210px;
                height: 45px;
                background-color: #e1251b;
                line-height: 45px;
                text-align: center;
                color: #fff;
                font-size: 14px;
                font-weight: bold;
            }

            .nav {
                a {
                    height: 45px;
                    margin: 0 22px;
                    line-height: 45px;
                    font-size: 16px;
                    color: #333;
                }
            }

            .sort {
                position: absolute;
                left: 0;
                top: 45px;
                width: 210px;
                height: 461px;
                position: absolute;
                background: #fafafa;
                z-index: 999;

                .all-sort-list2 {
                    .item {
                        h3 {
                            line-height: 30px;
                            font-size: 14px;
                            font-weight: 400;
                            overflow: hidden;
                            padding: 0 20px;
                            margin: 0;
                            a {
                                color: #333;
                            }
                        }

                        .item-list {
                            display: none;
                            position: absolute;
                            width: 734px;
                            min-height: 460px;
                            background: #f7f7f7;
                            left: 210px;
                            border: 1px solid #ddd;
                            top: 0;
                            z-index: 9999 !important;

                            .subitem {
                                float: left;
                                width: 650px;
                                padding: 0 4px 0 8px;

                                dl {
                                    border-top: 1px solid #eee;
                                    padding: 6px 0;
                                    overflow: hidden;
                                    zoom: 1;

                                    &.fore {
                                        border-top: 0;
                                    }

                                    dt {
                                        float: left;
                                        width: 54px;
                                        line-height: 22px;
                                        text-align: right;
                                        padding: 3px 6px 0 0;
                                        font-weight: 700;
                                    }

                                    dd {
                                        float: left;
                                        width: 415px;
                                        padding: 3px 0 0;
                                        overflow: hidden;

                                        em {
                                            float: left;
                                            height: 14px;
                                            line-height: 14px;
                                            padding: 0 8px;
                                            margin-top: 5px;
                                            border-left: 1px solid #ccc;
                                        }
                                    }
                                }
                            }
                        }
                        &:hover {
                            .item-list {
                                display: block;
                               
                            }
                        }
                    }
                    .item:hover{
                        background-color: skyblue;
                    }
                }
            }
        }
    }
</style>
